@inproceedings{fdi:010096615, title = {{I}mpact of tropical waves on the atmospheric structure and composition above {C}abo {V}erde during the {CADDIWA} campaign [r{\'e}sum{\'e}]}, author = {{J}onville, {T}. and {B}orne, {M}. and {F}lamant, {C}. and {C}uesta, {J}. and {B}ock, {O}. and {B}osser, {P}. and {L}avaysse, {C}hristophe and {F}ink, {A}. and {K}nippertz, {P}.}, editor = {}, language = {{ENG}}, abstract = {{T}he {C}abo {V}erde region is subject to the activity of many tropical waves during the boreal summer. {T}hey are known to favour or inhibit convective activity, and to play a role in the formation of {T}ropical {C}yclones. {A} frequency-wavenumber filtering method is used to identify the different waves. {A} novel tracking protocol is used to distinguish {A}frican {E}asterly {W}aves propagating north and south of the {A}frican {E}asterly {J}et based on their frequencies within the {M}ixed-{R}ossby {G}ravity - {T}ropical {D}isturbance ({MRG}-{TD}) domain, labeled {MRG}-{TD}1 and {MRG}-{TD}2, respectively. {B}ased on in-situ and satellite measurements from the {C}loud {A}tmospheric {D}ynamics {D}ust {I}nteractions in {W}est {A}frica ({CADDIWA}) campaign which took place in {C}ape {V}erde in {S}eptember 201, the impact of each tropical type on the atmosphere vertical structure and dust content is discussed. {O}ur results show that {E}quatorial {R}ossby waves mainly impact thermodynamics above 750 h{P}a, while {MRG}-{TD}1 affect jet-level thermodynamics, and {MRG}-{TD}2 modulate moisture in the lower troposphere. {D}ust event are mainly driven by {MRG}-{TD}2. {T}he importance of the interaction between waves for tropical cyclogenesis is also highlighted which provides new outlooks for improving tropical cyclogenesis forecasting in the region.}, keywords = {{CAP} {VERT}}, numero = {}, pages = {{EGU}25--4145 [1 ]}, booktitle = {}, year = {2025}, DOI = {10.5194/egusphere-egu25-4145}, URL = {https://www.documentation.ird.fr/hor/fdi:010096615}, }